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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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<title>colorizer Docs</title>
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<h1>colorizer</h1>
<ul>
<li><a href="../index.html">Index</a></li>
</ul>
<h2>Contents</h2>
<ul>
<li><a href="#Functions">Functions</a></li>
</ul>
<h2>Modules</h2>
<ul class="nowrap">
<li><a href="../modules/colorizer.html">colorizer</a></li>
<li><a href="../modules/colorizer.buffer_utils.html">buffer_utils</a></li>
<li><strong>color_utils</strong></li>
<li><a href="../modules/colorizer.matcher_utils.html">matcher_utils</a></li>
<li><a href="../modules/colorizer.sass.html">sass</a></li>
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<li><a href="../modules/utils.html">utils</a></li>
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<div id="content">
<h1>Module <code>colorizer.color_utils</code></h1>
<p>Helper functions to parse different colour formats</p>
<p>
</p>
<h2><a href="#Functions">Functions</a></h2>
<table class="function_list">
<tr>
<td class="name" nowrap><a href="#color_is_bright">color_is_bright (r, g, b)</a></td>
<td class="summary">Determine whether to use black or white text.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#color_name_parser">color_name_parser (line, i, opts)</a></td>
<td class="summary">Grab all the colour values from <code>vim.api.nvim_get_color_map</code> and create a lookup table.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#rgb_function_parser">rgb_function_parser (line, i)</a></td>
<td class="summary">Parse for rgb() css function and return rgb hex.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#rgba_function_parser">rgba_function_parser (line, i)</a></td>
<td class="summary">Parse for rgba() css function and return rgb hex.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#hsl_function_parser">hsl_function_parser (line, i)</a></td>
<td class="summary">Parse for hsl() css function and return rgb hex.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#hsla_function_parser">hsla_function_parser (line, i)</a></td>
<td class="summary">Parse for hsl() css function and return rgb hex.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#argb_hex_parser">argb_hex_parser (line, i)</a></td>
<td class="summary">parse for 0xaarrggbb and return rgb hex.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#rgba_hex_parser">rgba_hex_parser (line, i, opts)</a></td>
<td class="summary">parse for #rrggbbaa and return rgb hex.</td>
</tr>
</table>
<br/>
<br/>
<h2 class="section-header "><a name="Functions"></a>Functions</h2>
<dl class="function">
<dt>
<a name = "color_is_bright"></a>
<strong>color_is_bright (r, g, b)</strong>
</dt>
<dd>
Determine whether to use black or white text. </p>
<p> ref: https://stackoverflow.com/a/1855903/837964
https://stackoverflow.com/questions/596216/formula-to-determine-brightness-of-rgb-color
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">r</span>
number: Red
</li>
<li><span class="parameter">g</span>
number: Green
</li>
<li><span class="parameter">b</span>
number: Blue
</li>
</ul>
</dd>
<dt>
<a name = "color_name_parser"></a>
<strong>color_name_parser (line, i, opts)</strong>
</dt>
<dd>
Grab all the colour values from <code>vim.api.nvim_get_color_map</code> and create a lookup table.
COLOR_MAP is used to store the colour values
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">line</span>
string: Line to parse
</li>
<li><span class="parameter">i</span>
number: Index of line from where to start parsing
</li>
<li><span class="parameter">opts</span>
table: Currently contains whether tailwind is enabled or not
</li>
</ul>
</dd>
<dt>
<a name = "rgb_function_parser"></a>
<strong>rgb_function_parser (line, i)</strong>
</dt>
<dd>
Parse for rgb() css function and return rgb hex.
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">line</span>
string: Line to parse
</li>
<li><span class="parameter">i</span>
number: Index of line from where to start parsing
</li>
</ul>
<h3>Returns:</h3>
<ol>
<li>
number|nil: Index of line where the rgb function ended</li>
<li>
string|nil: rgb hex value</li>
</ol>
</dd>
<dt>
<a name = "rgba_function_parser"></a>
<strong>rgba_function_parser (line, i)</strong>
</dt>
<dd>
Parse for rgba() css function and return rgb hex.
Todo consider removing the regexes here
Todo this might not be the best approach to alpha channel.
Things like pumblend might be useful here.
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">line</span>
string: Line to parse
</li>
<li><span class="parameter">i</span>
number: Index of line from where to start parsing
</li>
</ul>
<h3>Returns:</h3>
<ol>
<li>
number|nil: Index of line where the rgba function ended</li>
<li>
string|nil: rgb hex value</li>
</ol>
</dd>
<dt>
<a name = "hsl_function_parser"></a>
<strong>hsl_function_parser (line, i)</strong>
</dt>
<dd>
Parse for hsl() css function and return rgb hex.
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">line</span>
string: Line to parse
</li>
<li><span class="parameter">i</span>
number: Index of line from where to start parsing
</li>
</ul>
<h3>Returns:</h3>
<ol>
<li>
number|nil: Index of line where the hsl function ended</li>
<li>
string|nil: rgb hex value</li>
</ol>
</dd>
<dt>
<a name = "hsla_function_parser"></a>
<strong>hsla_function_parser (line, i)</strong>
</dt>
<dd>
Parse for hsl() css function and return rgb hex.
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">line</span>
string: Line to parse
</li>
<li><span class="parameter">i</span>
number: Index of line from where to start parsing
</li>
</ul>
<h3>Returns:</h3>
<ol>
<li>
number|nil: Index of line where the hsla function ended</li>
<li>
string|nil: rgb hex value</li>
</ol>
</dd>
<dt>
<a name = "argb_hex_parser"></a>
<strong>argb_hex_parser (line, i)</strong>
</dt>
<dd>
parse for 0xaarrggbb and return rgb hex.
a format used in android apps
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">line</span>
string: line to parse
</li>
<li><span class="parameter">i</span>
number: index of line from where to start parsing
</li>
</ul>
<h3>Returns:</h3>
<ol>
<li>
number|nil: index of line where the hex value ended</li>
<li>
string|nil: rgb hex value</li>
</ol>
</dd>
<dt>
<a name = "rgba_hex_parser"></a>
<strong>rgba_hex_parser (line, i, opts)</strong>
</dt>
<dd>
parse for #rrggbbaa and return rgb hex.
a format used in android apps
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">line</span>
string: line to parse
</li>
<li><span class="parameter">i</span>
number: index of line from where to start parsing
</li>
<li><span class="parameter">opts</span>
table: Containing minlen, maxlen, valid_lengths
</li>
</ul>
<h3>Returns:</h3>
<ol>
<li>
number|nil: index of line where the hex value ended</li>
<li>
string|nil: rgb hex value</li>
</ol>
</dd>
</dl>
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